Apparatus for mixing and administering gases.



G. VON AOH. APPARATUS FOR MIXING AND ADMINIISTERING GASES.

APPLICATION FILED AUG. 25, 1908 Patented June 1, 1909.

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G. von AGE. 4 APPARATUS-FOR MIXING AND ADMINISTERING GASES. AIfPLIOATION FILED AUG. 25, 1908. 923,75 1 Patented June 1, 1909.

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I ATTORNE G. VON AGH. APPARATUS FOR MIXING AND ADMINISTERIN G GASES.

APPLIOATION FILED Aver. 25, 1909.

Patented June 1, 1909.

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G. voN AOH. APPARATUS FOR MIXING AND ADMINISTERING GASES. APPLICATION FILED AUG. 25, 1908.-

923 ,751 Patented June 1, 1909.

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W/ZNESSES 4 INVENTOH ATTORNEY,

G. VON AGH. APPARATUS FOR MIXING AND'ADMINISTEBING GASES.

APPLICATION FILED AUG. 25, 1908.

Patented June 1 6 SHEETS-SHEET 6.

INVENTOH WITNESSES- ATTORNEY.

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GEORGE VON ACH, OF NEWARK, NEW JERSEY.

APPARATUS FOR MIXING AND ADMINISTEBING GASES.

Specification of Letters Patent.

Patented June 1, 1909.

Application filed August 25, 1908. Serial No. 450,151.

To all whom it may concern:

Be it known that I, GEORGE VON Ac-H, a citizen of the United States, residing at New.- ark, in the county of Essex and State of New Jersey, have invented certain new and use:

.ful improvements in Apparatus for Mixing gether; to secure a perfect mixtpre of any deouter reservoir with -10 .plan with a certain top suitably constructed in any adapted to hold gases.

sired number of sai gases; to obtain exactness and accuracy inihandhng the gases, and the greatest possible convenience, and to secure other advantagesand results as may be brought out in the following description.

Referring to the accompanying drawin s, in which like numerals of reference indicate the same parts in each'of the several figures, Figure 1 is a front elevation of an apparatus of my improved construction, and ig. 2 is a side view of the same; Fig. 3 is a plan of the apparatuscomplete, Fig. 4 is a cover removed; F 5 is a horizontal cross section on line 5- 5, Fig. 1, showing a certain door partly closed; Fig- 6 is a cross-section on line 6- 6, Fig. 1, showing certain inner and outer reservoirs, and Fig. 7 is a vertical section of the same parts on line 7-7, Fig. 6; Fig. 8 shows the inner reservoir removed and in vertical secti on on line 88, Fig. 6, Fig. 9 is a plan of the the inner one removed; Fig. 10 shows in side elevation a certain delivery control valvc, Fig. 11 is a front view of the same, and Fig. 12 is a central section on line.1212', Fig. 11. i Fig. 13 is a section through a certain valve adapted "to connect the outer and inner reservoirs, and Fig. 14 is a similar detail section of a portion of the inlet duct to the inner reservoir.

In said drawings, 10 indicates a gasometer 1 formed in the shape of a cylinder with a longitudinal portion cut from its front so as filo l leave a flat surface 11. This gasometer 's k usual manner of sheet metal, and is preferably divided by a central partition 12 into chambers 13, 14 The circular base of the gasometer 10 projects front of the data toned side 11, as at 15, and affords seats 16. for a plurality of gas cylinders, said seats be ing of rubber or other cushioning material, in

order to allow slight relative adjustment of the cylinders in-height.

I have shown for purposes of illustration three gas cylinders, 17, 18 and 19, and frorn the top of eachleads an outlet'pipe'171, 181

'or191, provided with a valve 172,182 or 192. Said outlet pipes connect by a union 20, and

beyond said union is a pressure reducer or regulator 21, to control the high pressure in the cylinders. Beyond said reducer 21 are branch pipes 22, 23, each valved as at 24 or 2.5;. and connected to the interiors of the chambers 13, 1 1, respectively, by tubes 26,

.27, which are preferably of rubber pressure hose to allow relative movement of the connected parts. Thus it will be observed that gas can be taken from any one of the three cylinders, and led through the pressure reducer 21 into either'one of the chambers 13, 14 of the gasometer.

Each chamber 13, 14 of the gasometer 10 is provided at a;- eonvenient point with a pressure gage sure gage is mounted upon the union 20,

28 M29, and similarly a presso as to show the reading for any one of the three cylinders 17, 18 or 19 which is opened. This gage 30 is normally shut off by a valve 300, which is opened only when it is desired to ascertain the volume of gas in the cylinder or any one 'ofthem.

The'top 31 of the gasometer 1.0 is preferably circular, as shown, so that it projects out over the flattened front of the ga soineter, and upon said top 31 stand certain devices for administering the gases to a patient and which will next be described.

An outer reservoir32, of sheet metal, has

a flange 33 to hold its bottom 34 up from vides a closed chamber and is separate on all sides from the outer reservoir by a considerable space 38. Feet 39 hold this inner reservoir up from the floor of the outer reservoir, and preferably the top of the said inner voir between t an the top of the provide space beid top of the inner reservoir and a placed upon the outer reservoir. ace 38 between the outer and inner "e. oir is adapted in the use of the apparatus to be filled with Water, and this water can if desired be heated by a lamp or burner (not shown) set upon the top of the gasometer 16 under the bottom of the outcrreservoir. An opening 41 in the flange 33 ermits the introduction of such a lamp or urner, and holes 42 in the cover 40 provide a vent steam or the like. Hot water and steam can thus circulate entirely around the inner reservoir.

tion d5 the flattened front of the reser voirs. Each pipe 43 or 44 has a valve 46 I,

n?) for controlling the passage of gas theretnrough, at the top of the T-connection i5 is a pressure regulator or reducer 50. Beyond said regulator 56 the pipe divides again by another T-connection 51, into branches 52 53, one of which as 52 opens through the front of the outer reservoir into its chamber near the top thereof, and the other of which as 53 passes through the outer reservoir its top e ge, and are tending in over the top of the inner reservoir opens downwardly thereinto. Each of these branches 52 and 53 is provided with a valve 54 or 55, at the front of the outer reservoir, as shown in the eneral views of the drawings, the one 55 01 said valves, on the branch ip'e 52 which opens into the outer reservoir, eing an automatic valve as and for the purposes hereinafter more fully described.

The outer reservoir 36 has at its front parallel vertical interior partitions 56 and 57, spaced a short distance a art, and the pipe 52 described 0 ens into tie outer reservoir one side of t ese two partitions as shown,

whereby entering gas must pass around the i tie, the mner end of said tube 81 terminating back part or" the reservoir and come up against the other partition 57. Adjacent to this other partition, and at the bottom of the outer reservoir chamber, a pipe 58 leads therefrom, as at 59, and is coiled in the space beneath the inner reservoir 37, as

again into the outer resere partitions 56 and 57, as at 60. The gas thus arrives at the bottom of that portion of the outer reservoir between said partitions 56 and 57, and if desired is taken from the top thereof by a discharge nipple 61 to which a delivery tube may be connected as shown in full lines in Fig. 2.

The inner reservoir 37 has interior vertical shown, opening 1 partitions 62 and 63 dividing it into three l l l 1 l l l esavsi compartments through which this compartment a pipe 69 leads through the top of the inner reservoir along over the same and extends through the up )cr edge of the reservoir, as at 70, to a discharge nip le 71 at the front of said outer reservoir, and to which the delivery tube 85 may be attached when gas is administered from the inner reservoir.

Between the partitions 62 and 63 of the outer reservoir, a connection is provided between the two reservoirs, opening into the first compartment 6 1 of the inner reservoir, and controlled by a valve 73 accessible at the front of the outer reservoir. This valve is normally closed, but by opening it, and closing the discharge nipple 61, gas may be passed around through the inner reservoir after its passage through the outer reservoir, and finally issue at the discharge 71, having circulated through both reservoirs.

Upon the center of the top of the cover 40 for the reservoirs, is a support 74 for a wash bottle 75, comprising rings 76 held horizontal by braces 77. These braces are resilient and provided at their lower ends with feet 86 adapted to rcmovably slip under cleats 87 on the top 40; thus by pressing the braces near their lower ends toward the bottle, the feet 86 are freed and the whole support may be detached, releasing the bottle. The wash bottle itself is of usual construction with a tube 73 extending to the bottom of the bottle on its inside and having outside an end 79 adapted to reccive'a connection 88, as shown dotted in Fig. 2, with either of the discharge nipples 61 or 71. This connection may be by rubber tubing, as commonly done, and the outer end 80 of the other tube 81 in the bottle is adapted to receive the delivery tube 85 when gas is administered through the bot Then from either compartment, the gas therein can be led to either one of the outer and inner reservoirs 32 and 37, or it can be led through both said reservoirs, as described, or gas can be led from one compartment to one reservoir and from the other compartment' to the other r scrvoir, simultancously. From said reservoirs, the can be admire tfogupon an adj acent see,

istered cold dry, hot dry, cold moist or hot moist, as desired, and according to whether the heating means between the reservoirs and the wash bottle upon their top. or either of them, is employed as described. In prac tice, it is common to have the cylinders 17, 18 and 19 contain, for example, nitrous oxid, purified air and oxygen, respectively, and

the first and last named, respectively, either or both'diluted to any desired extent by the ,ped airf The nitrous oxid is then ad- -stered through the inner reservoir 37,

.l; the oxygen through the outer reservoir 32. v

The oxygen may frequentlyjie taken from the outer reservoir by a atient himself, and when th s is done it is important to guard against waste of the gas by failure of the unskilled operator to shut off the supply. For this reason, the valve in the branch pipe 52 is as above mentioned, made to automat-' ically close, as will next be described in detail, especial reference being bad to Figs. 10, 11 and 12.

The valve body provides at one point of its longitudinal passage, a transverse chamher having end portions 91, 92 of materially different diameters and opening one out through each side of the valve body. The end sections 93 and 94: of said passage lead into each of said portions 91 and 92 of the transverse chamber, and a valve 95 adapted to seat against the shoulder between said two portions controls communication between the said end sections and thus flow throu h the valve. A sprin 96 normally holds t e valve 95 seated to s rut oil flow, and a plug 97 closing the outer end of the large chamber portion 91 holds the outer end of said spring in place. A stem 98. of the valve projects into the smaller chamber portion 92 and rests against a diaphragm 99 held by a screw ring 100 in the enlarged outer end 101 of the chaml: er. A pin 102 outside said diaphragm and in alinement with the stem 98, projects through the screw. ring 100 to transmitmotion from a lever 103'on the outside of the valve body to the valve 95 to open it away from its eat against the spring 96. The said lever 103 is of the second class, fulcrumed as at 104, and providing at its opposite end a finger piece 105 which can be pressed toward the valve body to open the valve, and when released is instantly thrown outward again by the closing of the valve.

must therefore be positively held open, and loss of gas by its inadvertent escape cannot occur. I

To enable the lever 103 {to be retained in depressed osition when the 'ap aratus" is being used )y a physician or skills operator, I provide upon the under side of its finger piece 105 a rotatable segmental disk 10%, and point of the valve body a the two chambers of the gasomete'r contain The valve 1 I projection'107 approximately parallel to the ,lever 103 and under which the segmentall disk 106'will project-when turned into cer tain position, as shown in Fig. 12. W ith its 1 cut-away part 108 next the projection 107, j as shown in Fig. 11, said parts do not engage and the lever stands outward unless pressed 1 by the finger, and the valve closed.

It will be noted that asliding semi-cylindrical door 109 is arranged in ways upon the 1 base 15 and top 31 of the gasometenso that l when desired the cylinders 17 18, and 19 and l connections above the same can all be inl closed..- This door stands vertical, it will be l understood, and is slid open or shut by means j of a handle 110.

The inlet pipe 53 to the inner reservoir is,

where it passes through the outer reservoir 32, threaded as at'111 so as to screw into a transverse sleeve 112 of said'outer reservoir and make a tight joint against leakage from the water jacket 38 between the outer and inner reservoirs, all as shown in Fig. 14. The outlet pipe 09 of the inner reservoir extends in the same manner through the outer reservoir, as at 70 in Fig. 4. A drain cock 13 enables the water jacket to be emptied j when desired.

In Fig. 131 have shown a preferred detail construction of the valve 73 which establishes communication between the outer and inner reservoirs. Nipples 114, 115 at 1 the adjacent walls of the reservoirs project into the water jacket 38 to receive a union 1 116. To the end 117 of the nipple 115,

which is within the outer reservoir 32 is screwed one end of the body portion 118 of a valvelike a pressure gage cook, the other end 1 119 of said body projecting outside the outer l reservoir to receive a clamping and packing l nut 120. The valve stem 121 can thus be conveniently operated from the outside to l establish communication between the two i reservoirs, but the body part of the valve lies entirely inside the reservoir.

Having thus described the invention,.what I claim as new is:

1. In an apparatus for mixing and admin" istering gases, the I combination of a gasometer having its opposite end walls extending outward from its body at one side thereof, gas cylinder seats upon the lower of said extensions, pipe meaus for connecting such cylinders and gasomiter located between said lprojecting ends inside the direct lines between their peripheries, and gas administering means on top of the upper gasorneter end.

2. In an apparatus for mixing and administering gases, the combination of a gaslometer, a plurality of gas cylinders, valve branch ducts leading from said cylinders, a main duct receiving said branch ducts and leading to the gasorneter, a pressure regulator in said main duct, and gas administering means removablv mounted on. the topjof said same.

gasometer and communicating with the 3. In anapparatus for mixing and administering gases, the combination of a gasometer providing a lurality of chambers, a plurality of gas cy inders, valved branch ucts leadlng from said cylinders, a main duct receiving said branch ducts, a pressure regulator in said main duct, other branch ducts leading from said main duct to the said chambers of the gasometer, and gas administerliig means removably mounted on the top of said gasometer and communicating with the same.

4. In an apparatus for mixing and admingases, the combination of a gasometer having an extended base providing seats for gas cylinders, valved branch ducts adapted to connect to said cylinders, a main duct receiving said-branch ducts, a pressure regulator in said main duct, other branch ducts leading from said main duct to the said chambers istering means remova blymounted on the top of said gasometerand communicating with the same.

5. In an apparatus for mixing and administering gases, the combination of a gasometer providing a plurality of gas chambers, pipe means adapted to connect a plurality of gas cylinders to said chambers'and establish communication of each gas cylinder with any one of the chambers, and gas administering means removably mounted on the top' of said gasometer and communicating with the same.

6. In an apparatus for mixing and administering gases, the combination of a gasometer providing a plurality of gas chambers, pipe means adapted to connect a plurality of gas cylinders to said chambers and establish communication of each gas cylinder with any 'one of the chambers, gas administering devices mounted on said gasometer and providing a plurality of reservoirs, and means for connecting each of said chambers with any one of said reservoirs.

7. In an apparatus for mixing and ad ministering gases, the combinationwith a gasometer, of outer and inner reservoirs providing a water space between themselves, a coiled pipe between said reservoirs in communication at its ends with the outer reservoir, a partition in the outer reservoir between said ends of the coiled pipe, gas sup ply and discharge means at opposite sides of said partition in the outer reservoir, and other gas inlet and discharge means for the inner reservoir.

8. In an apparatus for mixing and administering ases, the combination with a gasometer, 0% areservoir, a water jacket for said reservoir, a coiled pipe in said. Water jacket communicating at its opposite ends with the reservoir, a partition in theireserof the .gasometer, -and gas adminvoir between said ends of the coiled pipe, and gas supply and discharge means at opposite sides of said partition in the reservoir eading from the gasometer.

' In an apparatus for mixing and administering ases, the combination witha gasometer, 0% a reservoir, a water jacket inclosing said reservoir, partitions in said reservoir dividing the same into separate compartments and having openings at dif fe'rent heights, one partition between two compartments being nnperforate, and means for supplying gas to an discharging it from e two compartments on opposite sides of'said last mentioned partition.

10. In an apparatus for mixing and administering gases, the combination with a gasometer, of outer and inner reservoirs providing a water space between themselves, a coiled pipe in said water space communicating at its opposite ends with, the outer reservoir, a artition in said outer reservoir between said ends of the coiled pipe, means for supplying gas to and dischargingit from said outer reservoir at opposite sides of said partition, other partitions in the inner reservoir dividing its interior into compartments and having 0 enings at different heights, one artition lieing iinperforate, means for supp ying gas to and discharging it from the inner reservoir on opposite sides of said last mentioned partition, and means for placing the two reservoirs in communication.

ing the gas from said reservoir, an auto- 5 matically closing valve controlling such delivery, and means for holding said valve open.

13. In an apparatus for mixing and administering gasometer, a reservoir, pipe connections adapted to place said gasometer and reservoir in communication, means for delivering I the gas from said reservoir, an automatically elosin valve controlling sueh delivery, a

, .lever i oropening said valve, ano projections upoh the valve body and lever, one adapted to be moved into engagement with the other to hold said lever withthe valve open.

11. In an apparatus for mixing and adetween 1 5 us for mixing and adgases, the combination of a 14. In an apparatus for mixing and administering. gases, the cornbination of a gasomete'r, a reservolr, pipe connections adapted to place said gasome-ter and reservoir in communication, meansfor delivering the gas from said reservoir,-- an automatically closing valve controllin such delivery, a lever for o ening said Va ve, a rotatable segmental dis on said lever, and a projection 11 on the valve body adapted to be engaged y said disk when the, lever is in posi tion to open the valve. a

15. In an apparatus for mixing and ad-.

said nipples, a valve body in the outer reservoir having comfimnication'with said nipples and also with the interior of said outer reservoir and projecting outside the outer reservoir, and a valve pro or in said valve body with its handle outsi e the outer reservoir.

ministeringgases, the combination with a gas'ometer in the form of a cylinder cut away along one side and having complete circular bases, of gas c iinders upon one base at 16. In an apparatus for mixing and ad-.

the cut away si .e of the c linder, pipe connections above said 'cylin ers between the gasometer and said cy inders, and a curved oor sliding between said bases in the line of the cylindrical surface of the gasometer.

GEORGE VON ACH. I In the presence of ETHEL B. REED, FREDERICK GERMANN, Jr. 

